AW88395_SYSST_REG
ret = regmap_read(aw_dev->regmap, AW88395_SYSST_REG, ®_val);
dev_err(aw_dev->dev, "read reg0x%x failed", AW88395_SYSST_REG);
ret = regmap_read(aw_dev->regmap, AW88395_SYSST_REG, ®_val);
ret = regmap_read(aw_dev->regmap, AW88395_SYSST_REG, ®_val);